Finding the Third Proportional to 200,756 and 445,798

Step by Step Solution

1. Step 1: Write the proportion equation
   200,756 : 445,798 = 445,798 : x
2. Step 2: Convert to fraction form
   200,756/445,798 = 445,798/x
3. Step 3: Cross multiply
   200,756x = 445,798 × 445,798
4. Step 4: Simplify right side
   200,756x = 198,735,856,804
5. Step 5: Solve for x
   x = 198,735,856,804/200,756
6. Step 6: Final answer
   x = 989,937.32